19427331532 has 12 divisors (see below), whose sum is σ = 38854663120. Its totient is φ = 8325999216.

The previous prime is 19427331479. The next prime is 19427331533. The reversal of 19427331532 is 23513372491.

It is a happy number.

19427331532 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (19427331533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346916607 + ... + 346916662.

Almost surely, 2^19427331532 is an apocalyptic number.

It is an amenable number.

19427331532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19427331532 is a wasteful number, since it uses less digits than its factorization.

19427331532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693833280 (or 693833278 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The spelling of 19427331532 in words is "nineteen billion, four hundred twenty-seven million, three hundred thirty-one thousand, five hundred thirty-two".